VOIP SIP Trunk
Enterprise SIP Trunks for IP Enabled Phone Systems
Fixed Price Calling Plans
Highly Available SIP
We’re trusted by the Brands you know and love
Reduce Your Phone Bill
Keep Your Existing Phone Number
Maintain Business Continuity
Scaleable as you Grow
Enterprise SIP Network
Support for all the leading IP Phone Systems
Summit SIP Trunks are tested with all of the major IP Phone Systems including Asterisk (Elastix, FreePBX, Trixbox, PBX in a Flash & Thirdlane), 3CX Phone System, Freeswitch and IPFX.
Support for all of the leading phone systems
Summit SIP Trunks are compatible with all of the leading phone system vendors either via direct IP or interfaced with ISDN BRI, ISDN PRI or PSTN SIP Gateways.
- Cisco Call Centre Manager
- LG Ericsson
- LG Aria
Microsoft Teams SIP Trunks
Integrate your Microsoft Teams or Skype for Business with Summit SIP Trunks for a true Unified Communications Solution.
Tested with Sangoma, Sonus and AudioCodes for crystal clear Skype for Business Phone Calls.